That happens in all games, mods are based on the game code, change the codes in an update and the mod needs updating. No malice intended.
And Why I don’t play private servers. The more mods you have the easier it is to screw the entire game up. But that isn’t a game issue.
If you’re worried about losing content play vanilla and get all the DLCs and battle pass.
Is the modding community still volatile?
No. They are very active, and engaged, but I wouldn’t go so far a volatile.
Are mods still breaking every patch?
Yes. But that is a fact in all games. It’s up to the mod author to update the mod to work with the game update. That is just a fact of game mods.
Is the game less buggy than 2.5 years ago?
No. More so with all the “add now fix later” content and game mechanics.